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Official data from INPI

MEMBRANA CONSISTINDO DE UMA ESTRUTURA MICROPOROSA QUE TEM PROPRIEDADES SEMIPERMEAVEIS,E PROCESSO PARA PRODUZIR A MESMA

Em AnáliseInvention Patent

Application data

Number

PI7706468

Type

Invention Patent

Filing

09/29/1976

Publication

-

Progress at the INPI

  1. Filing09/29/76
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant08/30/83
  6. Terminated12/15/87

The patent was granted on 08/30/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PHARMACO INC

Inventors

S. S. (pessoa física)

W. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Pedido de licença compulsória

#20.1

03/07/1984

RPI 698

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

10/27/1981

RPI 575

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